Title
Bbds: Blockchain-Based Data Sharing For Electronic Medical Records In Cloud Environments
Abstract
Disseminating medical data beyond the protected cloud of institutions poses severe risks to patients' privacy, as breaches push them to the point where they abstain from full disclosure of their condition. This situation negatively impacts the patient, scientific research, and all stakeholders. To address this challenge, we propose a blockchain-based data sharing framework that sufficiently addresses the access control challenges associated with sensitive data stored in the cloud using immutability and built-in autonomy properties of the blockchain. Our system is based on a permissioned blockchain which allows access to only invited, and hence verified users. As a result of this design, further accountability is guaranteed as all users are already known and a log of their actions is kept by the blockchain. The system permits users to request data from the shared pool after their identities and cryptographic keys are verified. The evidence from the system evaluation shows that our scheme is lightweight, scalable, and efficient.
Year
DOI
Venue
2017
10.3390/info8020044
INFORMATION
Keywords
Field
DocType
cloud computing, blockchain, data sharing, privacy, access control, electronic medical records
Internet privacy,Proof-of-stake,Computer science,Computer security,Data sharing,Full disclosure,Dissemination,Access control,Key (cryptography),Cloud computing,Scalability
Journal
Volume
Issue
ISSN
8
2
2078-2489
Citations 
PageRank 
References 
32
1.25
14
Authors
5
Name
Order
Citations
PageRank
Qi Xia113221.76
Emmanuel Boateng Sifah2807.48
Abla Smahi3352.97
Sandro Amofa4343.04
Xiao-song Zhang530545.10